Kaiser W J, Küsmenoglu I
USDA-ARS, Western Regional Plant Introduction Station, Washington State University, P.O. Box 646402, Pullman 99164-6402.
Central Research Institute for Field Crops, Ministry of Agriculture, Ankara, Turkey.
Plant Dis. 1997 Nov;81(11):1284-1287. doi: 10.1094/PDIS.1997.81.11.1284.
One hundred forty-five isolates of Ascochyta rabiei, the cause of Ascochyta blight of chickpea, were collected from chickpea (Cicer arietinum) in 23 provinces of Turkey. Each isolate was tested for mating type with compatible MAT1-1 and MAT1-2 tester isolates. Both mating types were found in 18 provinces. Of the isolates tested, 59% were MAT1-1 and 41% were MAT1-2. A great deal of variation in cultural characteristics was observed among the Turkish isolates in mycelial growth, sporulation, and colony appearance. Mature pseudothecia of Didymella rabiei, the teleomorph (sexual state) of A. rabiei, developed on naturally infested chickpea debris collected in 15 of 20 provinces when incubated under favorable conditions. This is a new geographic record for D. rabiei. The teleomorph may play an important role in long-distance dissemination of the pathogen and in increasing genetic diversity in the pathogen population in Turkey.
从土耳其23个省份的鹰嘴豆（Cicer arietinum）中收集了145株引起鹰嘴豆褐斑病的鹰嘴豆壳二孢菌分离株。使用兼容的MAT1-1和MAT1-2测试菌株对每个分离株进行交配型测试。在18个省份中均发现了两种交配型。在所测试的分离株中，59%为MAT1-1，41%为MAT1-2。在土耳其分离株中，观察到其在菌丝生长、产孢和菌落外观等培养特征方面存在很大差异。当在适宜条件下培养时，在20个省份中的15个省份收集的自然感染鹰嘴豆残体上，形成了鹰嘴豆壳二孢菌（鹰嘴豆壳二孢菌的有性态）的成熟假囊壳。这是鹰嘴豆壳二孢菌的一个新地理记录。有性态可能在病原菌的远距离传播以及增加土耳其病原菌群体的遗传多样性方面发挥重要作用。
